Vacuum-sweeper.



R. GUBBR. VACUUM SWEEPER.

APPLIOATION FILED 00T. 1, 1909.

W Patente@ @eg 4,' w10.

B.. GOBERa VACUUM SWEEPER.

APPLIUATION FILED ooT.1, 1909.

Qfm Patented 0015.4, 1910.

2 BHEETS-SHEBT 2. 211527 i' N M mlmmlp lili tilfer noting e on im rrr.more @or irriridire ai@ ie Specification of Letters Patent.

Application filed @ctohor l, 1909. Serial No. 520,438.

To all whom i mei; ooncern:

le. it known that lifliciiinn Goin-3u. u citizen of the l'nit'ed States.-reeidinpg at, Alameda, in the county of Alameda and State ofCalifo1'11ia,`i1are invented certain new and uz-ierul improvements inVaeuluu-dweepers, ofwhich the following;l is a Aepeeiliealion.

This invention relates lo vacuum cleaners especially adapted forcleaning' tiloors. lloor coverings, and the like, and the principalobject of the saine is to provide novel means wher-eb)T a vacuum will becreated in a easing so that the dust `from loors and l'loor eoveringswill be drawn therein,

Another object of the invention is to provide novel means whereby themachine will be rendered inoperative when reversed.

@ther objects and advantages of the invention will be apparent from thetolloving (letailed description and aeconuianying drawings.

ln Carrying out the objects of the inven-` tion generally stated aboveit will be under- Stooth of. course, that the essential features thereofare necessarily susceptible oi' changes in details and structurelarrangements, one preferred und practical embodiment oit which is `hovvnin the accompanyingl drawings wherein Figure l is a. side view ot thennproveu. cleaner. Fig. it is an enarged top plan view thereof. the topCovering being removed.

Fig. l is a vertical Sectional view taken on theline Y-Y. Fig. Q. Fig".4 is a similar view taken on Vthe line ZEE, Fig. 2. Fig.' 5 is afragmentary view in side elevation ofthe lower end of the support forthe supporting rollers of the machine. lig. tl a top plan view thereof.Fig. 7 is e detail fragmentary perspective view of the covering; for thecasing of the machine showingf the means for fastening the same overSaid easing.

Referring to said drawings by numerals, 'L designates a casing which ispreferably cylindrical, the central bottoni portion i2 of which isConcaved and in which the arched Supporting arm 3 is fastened. rihe endsof `aid arm 3 project below the bottom oi" said easing and are outturnedand thickened as indicated at 4 and each provided with an oblique sloty5 which forni a bearii-ig` 'for the end ofthe axle o. The Seid axletisslidable, but not rotatable in its bearings 5 and carries rollers 7equipped with a resilient tire ti. Said rollers resting 'on the door andforming the main support. for the machine as will be obvious. fr handle.9 for propelling the niaehine. has the ends its lower portion l0pivotally mounted in the outturned ends` el. ot the :irin 8.

The interior oi the casing; l is provided with a \"erl.it"all}y:wrangler-l partition plate ll which providers a dust chamber l2. saidpartition plato haring an inwardlifY lu-neled upper edge 11B.

The Front` of the easing l. below the bottom thereof. is provided withan out .'ardiv fiaring inlet nozzle l-f'r the inner end of which communi'fates with the interior of the easing l, the outer end l5 thereofheing` Yerticallv arranged and supported in close proximityY to the@urtare over which the nia whine iis rarelingj h v the. elongatedresilientt'ired roller lo that in mounted upon said nozzle by the,hanger bearings li'. The arm 3 carries a bearing hloelr i8 at. its upper@entrai portion tl'irough which a vertical shaft i9 proviects. The lowerend oi' said shaft- 'lQ has a' bevel. gear 2O tast thereon Which-is inmesh `with a similar, but 'pr t`er ably larger, gear 521 fast on ahorizontal shaft 22 the ends of which are journaled in the arched firm3. The upper end ot the shaft 19 projects into the Casing l and has ahub Q3 tast thereon from which a plurality of fan blades radiate, Saidtan blades have their inner Q5 curved to conform to the concavity of thecentral portion of the casing l. and their outer upper Corners beveledas indicated at 2G so that they inav rotate beneath the beveled. upperedge ot the partition plate i1. A friction roller 2T is fast on each endof the shaft QQ, said rollers boing in frietional engagement with thesupporting rollers 7 when the niachine is propelled forwardly so thatthey will rotate therewith and communicate their movements to the fanblades 24.- through the gears QO-QL and shaft 19. A spring 2S is coiledabout a lug 29 projecting Itroni each end of the arm 3, said springshaving one of their ends bearing1 against the shaft Zi and their otherend bearing; against the ends of the axle t3 and constantly exerting atension to move said axle G longitudinallyv ot the bearing slots 5 sothat the rollers 7 and 27 will be separated. A covering 30 of fabric hasa pendent annular flange, 3l adapted vto be litted over the top of thercasing l. Said `flange has its lower edge providedwith. a wire. 32, theends of which eoied as indicated at @ne coiled end is provided with a3L; so that said ends may be drawn together and detachably interlockedto tighten said iiange over ilie casing l.

As `will be seen by reference to Fig. 5, the E3 oblique bearing slots 5incline forwardly of the machine, so that when said n'iachine is pushedby the opera-ier (he downward pressure exerted on the machine will causethe axle 6 to ride up said slots 5 against the tension of the springs 29and cause the rollers 'l' and QT 'to :rictionally engage, and therebyroate ":fhe fan blades 2li-in the casing 1. rotation oi said fan bladesA creates a vacuum in the casing l and the air rushing in the casingthrough the nozzle 14 will such7 the dust from the surface over whichthe machine is traveling and deliver the dust to the dust chamber i2,the air esraping he casing l through the fabric covering 30.

T/'hen the is being reversed, or pulled ioivard die operator an uowardpressure Will exerted upon the machine, as'V vri". be obvious nnichpermits the axlei to be forced downward inthe bearing slots by thesprings Q8, thereby separaiing the `7`ollers 4l-27, and cutting off thepower from the fan blades 24.

' l be observed by reference to Fig. 2,

3o .e .tition plate il is at the rear of thev casi g l. and is arrangedso iliat the open end oi"- chamber i@ isin position to receive t' sconveyed thereto by the fan claim as my invention is :i

eiine ci' the character described .asing provided with an inlet ortingrollers therefor, a fan friction rollers engaging said Aers to operatesaid ian on the movement of said machine, and r .automaticallydisengagingv said the reverse movement or" the mameans rollers on Amachine the character described casing'having' an inlet nozting rollersfor the casing, a rotaan within said casing, friction rollers to saidian and adapted to engage ie siriporting rollers when the machine isorvvardly propelled, and springs for disngaging said rollers on illereverse movement the machine.

i machine of the character' described comprising casing having aconcavedbottom porti-on, an inlet nozzle carried by said casing, an arched armfastened to said concaved portion, supporting rollers carried by theends of aid arm, a shaft carried by said erin arl projecting into saidcasing, a ian and mounted on said ers carrier. by said arm fr 'si thefriction and supporting rollers when the machine is on the reversemovement.

4. A machine of the character described an inlet nozzle therefor, anaxle slidabl supported by said casing, supporting rol ers carried bysaid axle, a fan in said casing, fan rotating means including rollersengaging and operated by said supporting rollers when the machine ispropelled in one direction, and spri s carried by said casing forautomatica. y sliding said axle to remove the supporting rollers fromengagement with said fan rotating means when the machine is propelled inan opposite direction.

5. A machine of'the character described comprising a casing, an inletnozzle therefor, an arm fastened to said casing and providerV withoblique bearing slots, an axle slidable in said. slots, supportingrollers on said axle, a vian Within said casing, fan r0- tating meansadapted to be operated by said rollers on one movement of the machine,and springs for sliding said axle in its slots to separate the rollersfrom the fan rotating means on an opposite movementof the machine.

6. A machine of the character described comprising a casing having aconcaved central bottom portion, an arched shaped arm fastened Withinsaid concaved bottomportion "ith its ends projecting below bottom of thecasing, said ends being provided With an oblique bearing slot, an axleslidable insaid slots, supporting rollers for said axle, a horizontalshait carried by said arm above said supporting rollers, frictionrollers carried by said shaft and adapted to be engaged by saidsupporting rol lers on one movement of the machine, a vertical shaftcarried by said arm and projecting into said casing, a fan fast on theprojecting end of said vertical shaft, a gear connection between thehorizontal shaft and the vertical shaft, springs carried by the end ofsaid arm and interposed between the horizontal shaft and the said axlefor sliding said axle in its bearing slots on the reverse movement ofthe machine, an inlet nozzle carried by said casing, and a supportingroller carried by said nozzle.

In testimon whereof I aflix my signature in presence o two Witnesses.

RICHARD Gonna.

comprising a Casing,

lNitnesses Romina? Gnaswrrz, RICHARD ANDREWS.

